Mayor Thomas M. Menino conceded he may have to cut back his notoriously hectic schedule but insisted he’s still up for the job and even hinted that he could seek an unprecedented sixth term.

“I still have the energy,” Menino said at City Hall yesterday. “I still have a lot more things I want to accomplish . . . If I believe I can make a difference in this city and move this city forward, that’s my future.”

Menino, who has been recovering from a host of ailments for the past two months, is in daily physical therapy and is aiming to give his record 20th State of the City address Jan. 29.

“I’m happy I’m back here. I’m not full-time yet. But I can still yell,” he joked, adding, “Honestly, I feel so good.”

He’s slated to swear-in a new member of the school committee today at the Parkman House, where he’s been staying, but is unsure when he’ll return to a full schedule.

“I’m starting to realize that I can’t be every place all the time,” he said. “But you can’t stop being who you are. Once you stop being who you are, that’s when you get in trouble. I’m not going to stop being Tom Menino.”

He insisted he’s taking his political agenda “one day at a time,” but did lay out an agenda for 2013 that includes continuing to focus on schools and job creation, and finding new uses for the Boston Harbor islands, including potential commercial development and housing.

“Let’s get away from the status quo and think outside the box,” Menino said, noting that some of the islands once had summer homes.

Menino, 70, said he’s received “tons” of cards and letters from all over the country and praised the doctors and nurses caring for him, as well as his staff. Among the well-wishers has been Vice President Joe Biden, who pledged to the anti-gun Menino that President Obama will pass a national gun law by the end of the month.